Source: GOP will approve 5- or 6- day measure to avert shutdown

From NBC's Luke RussertWhile a final deal is hammered out by budget negotiators, House Republicans are expected to agree to a five or six day temporary government funding bill tonight that would prevent a government shutdown, a GOP source tells NBC News.

The stopgap measure will contain $3 billion in cuts and keep the government funded while the last details of a spending bill to fund the government through the end of the fiscal year are finalized. Both sides are close to a final deal on the long-term budget measure.

"This is the best deal we could get out of them," House Speaker John Boehner reportedly told GOP members in a closed-door caucus meeting of negotiations with Democrats.